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Finding the Fourth Proportional to 344.27, 519.01 and 317.86

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Solution

The fourth proportional to 344.27, 519.01 and 317.86 is: 479.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.27 : 519.01 = 317.86 : x
  2. Step 2: Convert to fraction form
    344.27/519.01 = 317.86/x
  3. Step 3: Cross multiply
    344.27x = 519.01 × 317.86
  4. Step 4: Simplify right side
    344.27x = 164,970.43
  5. Step 5: Solve for x
    x = 164,970.43/344.27
  6. Step 6: Final answer
    x = 479.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.